LED lamp that syncs to music

IntroLED Music Sync Lamp!

LED lamp that syncs to music

Now this thing freaking syncs to bass and treble beautifully after i remade it, like it was not awesome nuff. Also upped the quality of this instructable

Short video included of what this does

Blue LEDS that pulse to music, respond extremely well to bass, turn any place into a disco/dance floor :)

Download video!

Download video!

[THERE has been an issue in reordering steps]

dont worry about the picture, i actually made another one (based on your comments) and stuffed it inside for twice the awesomeness

image not found out:{ top: 0.2785714285714286, left: 0.34285714285714286, width: 0.26785714285714285, height: 0.30714285714285716, text:"OLD mini circuit board" } OLD mini circuit board optimized4perfection NEW mini circuit board optimized4perfection i watch?v=U_qD_JQkNlI64 KB

step 1You will Need

Power Supply : 6V old nokia charger
Amplifier: 1 channel
LEDS: many ($10 worth)
NPN Transistor
LM340 voltage regulator
Soldering iron

Other stuffs:
Computer with music
Soldering equipment
Wires

image not found 560x420 : F4SHEY8FBU39F0D (3) PLastic board with holes optimized4perfection lm317, no idea how to use optimized4perfection lm340, know how to use but dont know why. whats the middle pin for? optimized4perfection i

step 2Circuit Diagram

+6V ................. LEDs +ve

LEDs -ve ...............150 variable resistor .....................LM 340 5v regulator (1st pin)

LM 340 5v regulator (3rd pin)................Transistor (1st pin)

Transistor (3rd pin) ....................... -=Ground=- ...................audio signal

---

transistor (2nd pin) other audio signal

image not found 560x333 : FR0UE1XFBU39F1J (1) Add different resistances here if making another one to dual sync optimized4perfection i

step 3LED lights

How to make the part that lights up

cut circuit board into two strips and add leds in parallel

easy method for adding leds
1. insert leds tightly together
2. insert bare wires alongside leds
3. secure bare wire and leds to the bare wire with soldering
4.weave bare wire through board at ends and middle for good measure

tape both led strips into a V formation

ADD TONNES OF LEDS or hook up ur christmas tree

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step 4Ready to Go

look at other instructables on how to make a lamp / print some stuff and roll it up or fold into lamp

put leds inside

play some music (max out sound card volume if it is possible to control speaker volume independently)

note: amplifier prevents your sound card from facting the wrath of your power supply. Connecting the LEDs directly to the amplifier output has so far given dim LEDs and slow frequency response (thats why the transistor and the voltage regulator)

Note, 150 ohms is enough to get the leds working at reccomended voltage
however, they are not all of the time so they dont overheat if theres a lil overvolting
be careful, remember to set amp to zero first then turn up volume

image not found 560x420 : FNZ2Z7SFBGW8ILW (1) From circuit board, 1 channel output, 2 wires optimized4perfection i

step 5Tuning The Device

Set computer volume to max (speaker volume controlled independently), skip this step if your amp isnt cheap like mine.

play music and Turn on Amp to zero volume.

Add volume until desired frequency to brightness response

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step 6Test and make sure it is working

Test on a breadboard with 1 led to fix brightness, tuning and resistance issues

voltage regulator also works in series ( previous version managed to work in parallel but thats because it didnt do anything..lol)

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150ohm var resistor

optimized4perfection

more wires than the back of any mac

optimized4perfection

1 test LED

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working!!!!1

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introBlinking leds

Listening to music on my pc (proudly using WINAMP), I was wondering how would be to have some leds blinking with the sound that came out from the P2 connector, so I decided to make a simple circuit to do that. It worked pretty fine, so I decided to write a HowTo telling step-by-step how to do it. Hope you enjoy it!

If you want to see more of my DIY projects, please, visit my website:
Pasteler0's Tech Stuff

Material and Equipment:

1. 4 LEDs (any collor)
2. P2 plug
3. 2 position switch
4. TIP31 component
5. Box to put all the stuff (if you want)
6. Soldering iron and accessories
7. Cable

Video of the final project:

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step 1Step 1

This project will work this way, you connect 4 leds in the +12V from your computer, they are soldered to a 2 position switch that will connect to a component called TIP31, this component gets the intensity transmitted by the P2 connector, and with that, makes the leds blink with the music.

You can follow this scheme:

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step 2step 2

For this project, I decided to install everything inside a small black box I had here, so I made 6 holes on it. Four in the top for leds and one in each side for the switcher and cables. You can follow by the pictures:

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step 3step 3

With the box ready, its time to connect everything. I started with the leds, soldering one small cable connecting each one, so would be easier to arrange them inside the box after.

After connecting all leds, you must connect the cable coming from the leds to the center pin of the switcher. One side of the switcher goes to the middle pin of the Tip31 component, and the other one goes to ground cable.

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step 4step 4

Now it’s time to make the P2 connector. You can see that the P2 connector have 3 pins, they are, left channel, right channel and ground. So you have to decide to get the left or right channel and connect with the left pin from the Tip31. Remember that if you connect the P2 using the left channel, if only the right is enabled on the computer, this circuit won’t work. Usually the ground pin is the bigger one, and the other are small and similar. You have to connect the ground from P2 connector to the right pin of the Tip31 (right pin from Tip31 is ground)

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step 5step 5

On the other pin from the switcher, you must connect to the ground from Tip31. If the switcher if closing circuit with the Tip31, the leds will only blink if there is any signal coming from the P2 connector, and if it’s in the other direction, the leds will be always ON.

Now it’s time to put everything together in the box, as you can see in this picture, it’s not very organized, but after closing the box, it’ll look much better.

Job's Done! =)

And for more of my DIY projects, please visit my website:
Pasteler0's Tech Stuff

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